Knight, 52, the co-founder of Death Row Records, has pleaded not guilty to murder and attempted murder after he ran over two men outside a Compton burger stand in January 2015.

The move could mean more delays in a trial tentatively set to start April 9.

Culpepper and another former Knight attorney, Matthew Fletcher, were both indicted a week ago on charges of conspiring to influence potential witnesses in Knight's murder case. Both have denied any wrongdoing.

The indictment accused Culpepper of arranging with a potential witness, who turned out to be a confidential informant, to provide false testimony at trial — saying he saw weapons at the crime scene. That could bolster defense claims that Knight acted in self-defense.

Culpepper said he committed no crimes and was doing his job as Knight's defense attorney and looks forward to exonerating himself.